YearPToutPBase 100
201195.87%100
201295.45%100.3
201399.24%100.5
201497.02%100.8
201599.46%101.1
201689.72%101.3
201798.96%101.6
201896.65%101.9
2019100%102.2
202097.36%102.4
202199.82%102.7
Evolution : 2 % entre 2011 et 2021 soit 0.24 % de gain par an.